The answer is AWS IAM Access Analyzer. This service is the correct choice because it can generate a least privilege policy based on actual usage by analyzing the access activity recorded in AWS CloudTrail logs over the trailing 90 days. By examining which API calls an IAM role actually made, IAM Access Analyzer produces a refined policy that includes only those permissions, allowing you to replace an overly permissive policy with a precise, least-privilege version. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your understanding of how to audit and tighten permissions using native AWS tools; a common trap is confusing IAM Access Analyzer with IAM Policy Simulator or Trusted Advisor, but remember that only Access Analyzer can generate a policy from CloudTrail history. For a quick memory tip, think "Access Analyzer analyzes access" — it looks at what was actually used, not just what was allowed.
CLF-C02 Security and Compliance Practice Question
This CLF-C02 practice question tests your understanding of security and compliance. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company suspects that an IAM role used by an EC2 instance has been granted excessive permissions. Which AWS service can generate a policy that includes only the permissions actually used over the last 90 days?
Why wrong: Trusted Advisor checks for IAM best practices like key rotation and root account MFA but cannot generate policies based on actual usage history.
B
Amazon GuardDuty
Why wrong: GuardDuty detects active threats using behavioral analysis — it doesn't analyze IAM permission usage to generate policies.
C
AWS IAM Access Analyzer
IAM Access Analyzer generates least-privilege policies by analyzing CloudTrail activity logs to identify which permissions were actually used within the analysis period.
D
AWS Config
Why wrong: Config tracks configuration changes and evaluates rules — it can flag overly permissive policies but can't generate replacement policies based on actual usage.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS IAM Access Analyzer
AWS IAM Access Analyzer can generate a policy based on the access activity recorded in AWS CloudTrail logs over the trailing 90 days. This generated policy includes only the permissions that were actually used by the IAM role, allowing you to replace an overly permissive policy with a least-privilege version.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
AWS Trusted Advisor
Why it's wrong here
Trusted Advisor checks for IAM best practices like key rotation and root account MFA but cannot generate policies based on actual usage history.
✗
Amazon GuardDuty
Why it's wrong here
GuardDuty detects active threats using behavioral analysis — it doesn't analyze IAM permission usage to generate policies.
✓
AWS IAM Access Analyzer
Why this is correct
IAM Access Analyzer generates least-privilege policies by analyzing CloudTrail activity logs to identify which permissions were actually used within the analysis period.
Related concept
Read the scenario before looking for a memorised answer.
✗
AWS Config
Why it's wrong here
Config tracks configuration changes and evaluates rules — it can flag overly permissive policies but can't generate replacement policies based on actual usage.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse AWS IAM Access Analyzer's policy generation feature with its external access analysis feature, or mistakenly think AWS Config or Trusted Advisor can generate usage-based policies when they cannot.
Detailed technical explanation
How to think about this question
IAM Access Analyzer's policy generation feature queries CloudTrail management events for the specified principal (e.g., an IAM role) over a configurable trailing period (up to 90 days). It then produces a JSON policy document containing only the actions, resources, and conditions that were actually invoked, which can be used to replace an existing policy. A subtle behavior is that the generated policy does not include permissions for actions that were attempted but denied (e.g., due to an explicit deny), so you must still verify that no required permissions are missing.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CLF-C02 question in full detail.
Security and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS IAM Access Analyzer — AWS IAM Access Analyzer can generate a policy based on the access activity recorded in AWS CloudTrail logs over the trailing 90 days. This generated policy includes only the permissions that were actually used by the IAM role, allowing you to replace an overly permissive policy with a least-privilege version.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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